Improving Castor Productivity through Different Sowing Schedules and Genotypesunder Rainfed Condition

摘要

Field experiment was conducted at Tapioca and Castor Research Station during 2014 - 15 on evaluation of different sowing schedules (August, September, October and November) and varieties/ hybrids (DCS-107, DCH-177, GCH-7 and YRCH-1) in castor. Among the sowing dates, sowing of castor at 2nd fortnight of August has recorded significantly higher kernel yield (705.8 kg/ha) followed by September (497.0 kg/ha) over October and November sown plots due to deficit in rainfall. Among the varieties/ hybrids tested GCH-7 has recorded significantly higher mean kernel yield (597.7 kg/ha) in all dates of sowing over other genotypes. GCH-7 and DCH 177 have recorded significantly higher kernel yield by taking sowing during 2nd fortnight of August (1046 and 927.6 kg/ha).